Principal Cyber Security Engineer

MANTECH • chantilly, virginia • Posted June 14, 2026

About the Role

MANTECH seeks a motivated, career and customer-oriented Principal Cyber Security Engineer to join our team in Chantilly, VA .

The Principal Cyber Security Engineer will leverage their strong technical background and knowledge to support the Sponsor’s system accreditation efforts, to include creating Body of Evidence (BOE) documentation, responding to/implementing/documenting required controls, and completing required tasks/actions.

Responsibilities include but are not limited to:

  • Designing, implementing, and maintaining complex systems and infrastructure that support critical business objectives.
  • Deploying solutions to proactively mitigate cyber threats to customer networks while collaborating with cross-functional teams to ensure security and performance requirements.
  • Troubleshooting and resolving complex system issues and making recommendations to senior management to improve the overall security posture....